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<H1 class="no-header">wresize 3x 2025-01-18 ncurses 6.5 Library calls</H1>
<PRE>
<STRONG><A HREF="wresize.3x.html">wresize(3x)</A></STRONG>                      Library calls                     <STRONG><A HREF="wresize.3x.html">wresize(3x)</A></STRONG>




</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
       <STRONG>wresize</STRONG> - resize a <EM>curses</EM> window


</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
       <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>

       <STRONG>int</STRONG> <STRONG>wresize(WINDOW</STRONG> <STRONG>*</STRONG> <EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>lines</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>columns</EM><STRONG>);</STRONG>


</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
       <STRONG>wresize</STRONG>,  an  <EM>ncurses</EM>  extension  to  the  <EM>curses</EM>  library, reallocates
       storage for <EM>win</EM>, adjusting its dimensions to  <EM>lines</EM>  and  <EM>columns</EM>.   If
       either  dimension  is  larger than its current value, <EM>ncurses</EM> fills the
       expanded part of the window with the window's background  character  as
       configured by <STRONG><A HREF="curs_bkgd.3x.html">wbkgdset(3x)</A></STRONG> (wide-character API: <STRONG><A HREF="curs_bkgrnd.3x.html">wbkgrndset(3x)</A></STRONG>).


</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
       <STRONG>wresize</STRONG>  returns  <STRONG>OK</STRONG> on success and <STRONG>ERR</STRONG> on failure.  It fails if either
       <EM>lines</EM> or <EM>columns</EM> is less than or equal to zero, or if an  error  occurs
       while (re)allocating memory for <EM>win</EM>.


</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
       The  only restriction placed on the values of <EM>lines</EM> and <EM>columns</EM> is that
       they be greater than zero.  They are <EM>not</EM> compared to the dimensions  of
       the  <EM>curses</EM> screen; this keeps the logic of <STRONG><A HREF="resizeterm.3x.html">resizeterm(3x)</A></STRONG> simple.  The
       caller must ensure that  <EM>win</EM>'s  dimensions  fit  within  those  of  the
       screen.


</PRE><H2><a name="h2-EXTENSIONS">EXTENSIONS</a></H2><PRE>
       <STRONG>wresize</STRONG>  is  an <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG> extension, and is not found in SVr4 <EM>curses</EM>,
       4.4BSD <EM>curses</EM>, or any other previous <EM>curses</EM> implementation.


</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
       Applications employing <EM>ncurses</EM> extensions should condition their use on
       the visibility of the <STRONG>NCURSES_VERSION</STRONG> preprocessor macro.

       NetBSD  <EM>curses</EM> adopted <EM>wresize</EM> in 2001 (release 1.5.3), and <EM>PDCurses</EM> in
       2004 (version 2.7).

       It is not possible to resize windows with SVr4 <EM>curses</EM>.


</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
       Thomas Dickey developed <EM>wresize</EM> as an extension to BSD <EM>curses</EM> in  1988,
       and brought it to <EM>ncurses</EM> in mid-1995.


</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
       Thomas Dickey


</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
       <STRONG><A HREF="resizeterm.3x.html">resizeterm(3x)</A></STRONG>



ncurses 6.5                       2025-01-18                       <STRONG><A HREF="wresize.3x.html">wresize(3x)</A></STRONG>
</PRE>
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<ul>
<li><a href="#h2-NAME">NAME</a></li>
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
<li><a href="#h2-NOTES">NOTES</a></li>
<li><a href="#h2-EXTENSIONS">EXTENSIONS</a></li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
<li><a href="#h2-HISTORY">HISTORY</a></li>
<li><a href="#h2-AUTHORS">AUTHORS</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
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